WARNING: CPU: 1 PID: 339 at lib/iov_iter.c:857 iov_iter_revert+0x2ee/0xaa0 lib/iov_iter.c:857 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 339 Comm: syz-executor0 Not tainted 4.17.0+ #83 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1b9/0x294 lib/dump_stack.c:113 panic+0x22f/0x4de kernel/panic.c:184 __warn.cold.8+0x163/0x1b3 kernel/panic.c:536 report_bug+0x252/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x1de/0x490 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:992 RIP: 0010:iov_iter_revert+0x2ee/0xaa0 lib/iov_iter.c:857 RSP: 0018:ffff8801a98c7788 EFLAGS: 00010216 RAX: 0000000000040000 RBX: 00000000ffffffff RCX: ffffc900020d1000 RDX: 00000000000002dc RSI: ffffffff8351085e RDI: 0000000000000007 RBP: ffff8801a98c77e8 R08: ffff8801d7654480 R09: ffffed003b5e46d2 R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001 R13: ffff8801a98c7ad0 R14: 0000000000000011 R15: ffff88017ab590c0 tls_sw_sendmsg+0xf34/0x12e0 net/tls/tls_sw.c:448 inet_sendmsg+0x19f/0x690 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:629 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:639 sock_write_iter+0x35a/0x5a0 net/socket.c:908 call_write_iter include/linux/fs.h:1784 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x64d/0x960 fs/read_write.c:487 vfs_write+0x1f8/0x560 fs/read_write.c:549 ksys_write+0xf9/0x250 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455a09 RSP: 002b:00007f1f23930c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f1f239316d4 RCX: 0000000000455a09 RDX: 0000000000000011 RSI: 0000000020000280 RDI: 0000000000000014 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000007ab R14: 00000000007008a8 R15: 0000000000000000 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..